201 configure azure infrastructure (#223)

* Update Azure infrastructure workflow to include validation step and what-if deployment

.github/workflows/azure-infra.yml

@@ -9,7 +9,32 @@ on:
   # deployment:
 
 jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Login to Azure
+        uses: azure/login@v1
+        with:
+          client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+      - name: Lint Bicep
+        run: |
+          az bicep build ./azure/bicep/main.bicep
+      - name: Run what-if
+        uses: azure/arm-deploy@v1
+        with:
+          subscriptionId: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          resourceGroupName: ${{ secrets.AZURE_RG }}
+          template: ./azure/bicep/main.bicep
+          parameters: 'environment=prod '
+          scope: 'resourcegroup'
+          failOnStdErr: false
+          additionalArguments: --what-if
   bicep-deploy:
+    needs: validate
     environment: azure-prod
     runs-on: ubuntu-latest
     steps:
@@ -24,9 +49,10 @@ jobs:
       - name: Deploy Bicep
         uses: azure/arm-deploy@v1
         with:
+          deploymentName: ${{ github.run_number }}
           subscriptionId: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           resourceGroupName: ${{ secrets.AZURE_RG }}
           template: ./azure/bicep/main.bicep
           parameters: 'environment=prod '
           scope: 'resourcegroup'
-          failOnStdErr: true
+          failOnStdErr: false